Revert "fix system_server dex2oat exec"

This reverts commit 10370f5ff47745fe9678d18ff788e51e665bf36e.

The underlying issue has been fixed and the system_server
will now go via installd to get stuff compiled, if required.

bug: 16317188

Change-Id: I77a07748a39341f7082fb9fc9792c4139c90516d
1 file changed